Merge pull request #3408 from brendandahl/fix-multiresolution

[B2G] UI tweak for multi-resolution devices support on B2G

src/network.js

@@ -46,7 +46,11 @@ var NetworkManager = (function NetworkManagerClosure() {
     this.httpHeaders = args.httpHeaders || {};
     this.getXhr = args.getXhr ||
       function NetworkManager_getXhr() {
+//#if B2G
+//      return new XMLHttpRequest({ mozSystem: true });
+//#else
         return new XMLHttpRequest();
+//#endif
       };
 
     this.currXhrId = 0;